Steel and Composite Structures

  • 제44권6호
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  • Pages.789-801
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  • 2022
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Study on seismic performance of SRC special-shaped columns with different loading angles

  • Qu, Pengfei (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Liu, Zuqiang (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Xue, Jianyang (School of Civil Engineering, Xi'an University of Architecture and Technology)
  • 투고 : 2021.09.07
  • 심사 : 2022.09.19
  • 발행 : 2022.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

In order to study the influence of loading angles on seismic performance of steel reinforced concrete (SRC) special-shaped columns, cyclic loading tests and finite element analysis (FEA) were both carried out. Seven SRC special-shaped columns, including two L-shaped columns, three T-shaped columns and two cross-shaped columns, were tested, and the failure patterns of the columns with different loading angles were obtained. Based on the tests, the FEA models of SRC special-shaped columns with different loading angles were established. According to the simulation results, hysteretic curves and seismic performance indexes, including bearing capacity, ductility, stiffness and energy dissipation capacity, were analyzed in detail. The results showed that the failure patterns were different for the columns with the same section and different loading angles. With the increasing of loading angles, the hysteretic curves became fuller and the bearing capacity and initial stiffness appeared increasing tendency, but the energy dissipation capacity changed insignificantly. When the loading angle changed, the ductility got better with the larger area of steel at the failure side for the unsymmetrical section and near the neutral axis for the symmetrical section, respectively.

키워드

과제정보

The research was funded by National Natural Science Foundation of China PR (No. 52278212), Shaanxi Innovation Capacity Support Programs (No. 2019TD-029), Shaanxi Scientific Research Project (No. 2021JM-351) and Scientific Research Project of Youth Innovation Team Construction of Shaanxi Department of Education (No. 21JP062), which is gratefully acknowledged.

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